Doughboy Sequel II 0-1651-000 User manual

365-1919
PICKUP PHOTO FROM PREVIOUS OWNER'S GUIDE
365-1741
7/96
Sequel IITM
Rotary DE Filter
Model 0-1651-000
Owner's Guide

“READ ALL INSTRUCTIONS” Failure to follow these important
safety instructions and other basic safety precautions may result
in serious personal injury.
2
IMPORTANT SAFETY INSTRUCTIONS
product unless they are closely supervised by adults at
all times.
Replace damaged cord immediately to reduce the risk
of electrical shock.
DO NOT BURY CORD
An exposed cord may accidentally become damaged or
severed by a sharp object or shovel resulting in severe
electrical shock. Position cord to prevent accidental
damage from lawn mowers, hedge trimmers, or other
equipment.
BARE FEET/WET GROUND
This is a dangerous combination around electrical
equipment. Always be sure the ground under your feet
and body is dry before you touch electrical equipment.
Failure to heed this warning may cause severe per-
sonal injury or electrocution due to severe electrical
shock.
WARNING
Avoid direct water spraying with a garden hose around
electrical outlets, pump or any other electrical devices.
Severe electrical shock or electrocution may occur.
SERVICING YOUR PUMP
Always unplug your pump from the receptacle before
servicing, adjusting or repairing your filter sysyem.
CAUTION: To reduce the risk of electrical shock,
use only Original Equipment Manufactured (OEM)
replacement parts when servicing.
Did you read the IMPORTANT SAFETY INSTRUC-
TIONS? If not, READ THEM NOW. They contain very
important safety information related to the installation of
your filter.
Familiarize yourself with the installation sequences by
reading these instructions first. AVOID SHORTCUTS
that may result in reworking the installation.
Doughboy's Sequel II ™ Filter makes routine pool
care easier, faster and more convenient. Sequel
II™ skims small particles, dust, and debris from the
pool's surface. This debris, with the water, is
processed through a filtering element. Clean, clear,
polished water is returned to the pool. This filtering
system, combined with proper pool chemistry, will
keep your pool sparkling. Follow the easy steps
below to install your new Sequel II™ Filter. Num-
bers in parentheses refer to key numbers in the
illustration on page 7.
Before you begin installing your filter, refer to your pump
owner's guide for very important installation and electri-
cal information related to your filter.
ELECTRICAL/BUILDING PERMIT
Local building codes may require obtaining an electrical
or building permit and may have regulations on set-
backs and barriers that must be followed.
ELECTRICAL
We recommend you have a qualified electrical contrac-
tor install the electrical power supply as specified in your
pump instructions.
INSTALLED LOCATION
Position filter, pump and any other related components
a minimum of 5 feet from pool to prevent their being
used as a means to climb into the pool by young
children. DO NOT store toys, chairs, tables, containers
or other objects within 5 feet of the pool for the same
reason.
WARNING
SEVERE ELECTRICAL SHOCK could result if you
install your filter and pump on a deck or above pool
water level. They could fall into the water, causing
severe shock or electrocution. DO NOT install on a
deck or other surface at, above or slightly below the top
rail of the pool.
PROPERLY SUPPORTED
Filter, pump and any other related components should
be properly supported to prevent damage from misalign-
ment, settlement or vibration, and mounted to minimize
the potential for the accumulation of debris and mois-
ture.
ACCESSIBILITY
The circulation system components should be installed
to allow accessibility for inspection, repair, or replace-
ment.
DO NOT alter the pump electrical cord in any way or
change the plug end to any other style.
DO NOT use an extension cord(s). Severe electrical
shock may occur.
PREVENT SEVERE SHOCK
To prevent the risk of severe electrical shock, plug your
pump cord end into a grounding type receptacle pro-
tected by a ground fault circuit interrupter (GFCI).
Contact a qualified electrician if you cannot verify that
the receptacle is protected by a GFCI.
DO NOT allow children to operate or play around this

IS YOUR POOL READY?
The pool must be properly erected per Doughboy's Pool
Assembly & Installation Instructions. There should be
approximately 2 feet of water up the metal wall so the
liner is stretched to the proper position for installation of
the complete filtering system (skimmer, filter, pump, etc.)
Tools and Materials You Will Need
• Six 14" x 14" patio blocks
• Shovel
• 7/16" Wrench
• Flat Head Screwdriver
• 5/16" Nutdriver (optional)
• Phillips Screwdriver (if optional base is purchased)
• Waste Hose– 1 1/2" diameter
• Carpenter's Level
3
FIG. 2
CLAMP
RETURN
FITTING
PATIO
BLOCKS
SEQUEL II™
D.E. FILTER
STRAINER
WASTE
PORT
TO
PUMP
VALVE HANDLE
(SHOWN IN BACKWASH
POSITION)
TO POOL
RETURN
FITTING
POOL POWER
PAK®II
CLAMP
CLAMPS
SKIMMER
FIG. 1
INSTALLING SEQUEL IITM FILTER
Install the filter and pump 5 feet from the pool wall
so they may not be used as steps by children.
Filtering system must sit on a firm, level pad. Patio
blocks are the best and easiest material to use for the
pad. Any material that is firm and level is acceptable.
This pad gives firm support to your Sequel IITM, and
allows easy maintenance. It keeps grass from blocking
air to the Pool Power Pak®, and keeps standing water
away from electrical parts. Use six 14" x 14" patio
blocks to make a pad large enough so your Sequel IITM,
pump and base (if purchased) can sit without tipping.
Use a shovel and carpenter's level to level ground before
placing blocks if necessary.
HOSE INSTALLATION
(See Fig. 1 and Exploded Parts Illustration)
IMPORTANT: Incorrect hose installation could cause
damage to your filter system. Follow the instructions
below carefully.
Suction and Return lines should be partially buried to
prevent accidental tripping that could cause personal
injury or damage to the filter system.
Starting at least 12" from the pool wall, make two 3-4"
deep trenches, one from the pool skimmer to the front of
pump, and the other from the pool return fitting to the
filter return port.
The two 8 ft. long hoses (36) are interchangable and
used for the suction and return lines. Slip a hose clamp
over the ends of each hose prior to installing. Connect
one long hose (suction line) between the pool skimmer
and front port of the pump. Connect the other long hose
(return line) between the pool return fitting and filter
return port.
Connect the short hose (33) between the pump dis-
charge port (located at top of pump) and the filter pump
port. Tighten clamps firmly using a flathead screwdriver
or 5/16" nutdriver. Cover the trenches with a firm board
when finished.
NOTE: Do not completely bury the hoses with dirt.
SEQUEL IITM OPERATING POSITIONS
Your new Sequel IITM Filter has six positions of opera-
tion, which are explained below. To change positions on
the filter, be sure the pump is "OFF". Press down on the
filter handle enough to free the locking tab. Rotate the
handle so the tab locks in the desired position. The
locking tab indicates the filter positions. The tab must be
locked into one of the six slots for the filter to operate
correctly.
FILTER POSITION
(Normal running position for filtering pool water.)
The length of filtering time depends on: pool size, pool
use, amount of airborne dust and debris, and chemical
treatment. High wind locations will cause a pool to get
dirty faster, requiring longer filtering time. Failure to give
your pool proper chemical treatment will also require
additional filtering time. Your pool dealer can help you
determine proper filtering times, general maintenance
and chemical treatment for your pool.
BACKWASH POSITION
Backwashing reverses the flow of water, cleaning dirt
and debris from the filter. How often you backwash the

4
filter will vary with pool size, pool use, amount of air-
borne dirt and debris, and the chemical treatment you
give the water. Backwashing should be done when the
Sequel IITM pressure gauge reads 5 to 7 pounds higher
than initial start-up pressure. Example: If the pressure
guage reads 10 pounds at the start of a clean filter, you
should backwash when the gauge reads from 15 to 17
pounds.
FILTER TO WASTE POSITION
Place the valve handle in the "Filter to Waste" position
after backwashing your Sequel IITM Filter. This will
prevent an objectionable "cloudy puff" of D.E. from
entering your pool through the pool return inlet.
PUMP TO WASTE POSITION
This position allows you to vacuum heavy debris or
larger amounts of settled contaminants from the bottom
of your pool directly to waste.
RECIRCULATE POSITION
This position allows you to increase the water flow rate
through the filter to circulate chemicals throughout the
pool more quickly. Pool water passes through the filter
valve on top of the filter, bypassing internal filter compo-
nents, and travels back to the pool at a rapid rate.
WINTERIZE POSITION
This position to allows you to drain trapped water from
the filter valve and relieve compression on the rotor
valve gasket during winter storage.
INITIAL START-UP AND OPERATION OF
FILTER
The water level in your pool must be between the
water level markers on the skimmer faceplate. The
pump must be able to draw water from the pool to
operate safely. Never run the pump with the pool water
level so low that no water passes to the pump. The
pump seal may overheat and permanent damage to the
pump may occur.
WASTE LINE HOOK-UP
The waste line is used when cleaning (backwashing)
and adding D.E. to the filter and requires a 1 1/2" dia.
hose connected to the filter port labeled "To Waste".
You may also use a collapsible-type hose obtained from
your dealer designed for this purpose. Be sure pump is
off. Remove the waste cap (19) and gasket (18) prior
to installing hose on filter. Make sure the other end
of the hose is located in an area that will accept approxi-
mately 100 gallons of water.
ADDING D.E.
Be sure your Sequel II™ valve handle is in the FILTER
TO WASTE position. Remove waste cap and gasket.
Your filter requires 2 1/2 pounds of "diatomaceous earth"
(D.E.). This powder coats the grids inside the filter. The
coated grids provide the filtering action. D.E. can be
purchased at your local pool store. Remove the skim-
mer lid. Start your Pool Power Pak. You can use a
clean, one-pound coffee can to measure the D.E.
NOTE: A one pound coffee can holds 1/2 pound of D.E.
Your filter requires five coffee cans full. Slowly pour D.E.
into the skimmer. During this process super fine par-
ticles of the D.E. migrate through the "V" grids and to
waste rather than entering the pool in an objectionable
cloudy puff through the return inlet. After 30 seconds,
turn power pak "OFF", rotate valve handle to the
FILTER position. Replace skimmer lid in normal position
when completed and turn power pak "ON". Note the
clean filter starting pressure on the pressure gauge.
NEVER OPERATE FILTER WITHOUT D.E.!
A newly filled pool usually requires continuous filtering
for about 24 hours. The time varies depending on water
conditions and amount of water being filtered. During
initial start-up, the Sequel llTM may require frequent
cleaning (backwashing) as it filters the water. (See
"BACKWASHING "). After a few days of operation, and
periodically thereafter, recheck all fittings, clamps and
screws for tightness. Retighten as necessary.
ROUTINE CARE & MAINTENANCE
FILTERING
For normal filtering, the valve handle is rotated to the
FILTER position, and the Pool Power Pak is "ON".
When you stop your Power Pak, the D.E. slips off the
filtering grids and settles to the bottom of the filter tank.
When you start your Power Pak, inlet water is directed to
the bottom of the filter tank. It sweeps up the settled
D.E. and collected debris to recoat the filtering grids.
(You may notice a lower reading on the Sequel IITM
pressure guage at this time. Water flowing through the
grids meets less resistance from the D. E. and collected
debris mixture. This gives you extended filtering time.
You don't need to add more D.E.). Backwash the filter
when there is a big increase in the pressure gauge
reading.
BACKWASHING
1. Stop pump. Be sure drain cap (19) and gasket (18)
are removed, and waste line is hooked up to the port
labeled "To Waste."
2. Rotate valve handle to BACKWASH position. Turn
pump "ON" and run for 2-3 minutes.
3. Stop pump and move valve handle to FILTER TO
WASTE position, then start pump and run for 20
seconds.
4. Stop pump and repeat steps 2 and 3.
5. Stop pump and move valve handle back to
BACKWASH position. Start pump and run until
waste water is clear.
6. Stop pump, move valve handle to FILTER TO
WASTE position. Start pump and recharge with
D.E. (See Initial Start-Up of Filter for adding D.E.).
7. When finished, remove waste hose, and replace
gasket (18) and drain cap (19).
TO CLEAN DOUGHBOY STRAINER
ASSEMBLY
CLEAN THE STRAINER ASSEMBLY FREQUENTLY.
The strainer assembly on your Doughboy Pool
Power Pak®catches large debris such as insects and
leaves. To clean: Stop your Power Pak. Rotate valve
handle on your Sequel IITM to BACKWASH position.
This closes off the pool return line to prevent back flow
of water through the filter and out the pump strainer. To
prevent water coming from the skimmer, remove skim-
mer lid and basket. Plug the hole in the bottom of the
skimmer with a towel or cloth. Place one hand on top of
the strainer cover and loosen the two knobs enough to
rotate the cover counter-clockwise until it stops. Lift off
the cover. Remove basket and clean. Lubricate O-Ring
on cover prior to reassembly. (See "LUBRICATION" in
this guide). Replace basket. To replace cover, press
down and rotate clockwise until slots in cover are
completely under knobs. Tighten knobs until cover is
fully seated. Remove towel or cloth from skimmer hole.
Replace skimmer basket and lid. Rotate valve handle to
FILTER position and switch Pool Power Pak to resume
normal filter operation.

5
age (brittle vinyl). Such damage is not covered under
warranty.
IMPORTANT: Pump and Sequel IITM should always
be "ON" when adding chemicals to pool water.
WITH DISPENSER
Dry Chlorine (tablets, sticks, granules, or powder). Use
one of the following types of chlorine dispensers:
•Floating Dispenser: Use only when pump is
running. Dispenser must circulate in pool for
safe distribution of chlorine.
•Automatic feeder (in-line or off-line).
•Chlorine generator - Approved for use.
Releases chlorine from salt.
Ask your Doughboy dealer to recommend the best type
of dispenser for your pool and area conditions. Follow
manufacturer's instructions for correct use.
WITHOUT DISPENSER
Dry Chlorine: Use granules or powder only. NEVER
pour dry chlorine directly into the pool water. Mix with
pool water in a clean plastic container following chlorine
manufacturer's safety instructions. When all chlorine
has dissolved, pour solution into pool water at the return
fitting. Water returning to the pool will properly distribute
chlorine.
Liquid Chlorine: Liquid chlorine concentrate may be
poured directly into pool water. Carefully add liquid
chlorine to water at the return fitting. Water returning to
the pool will distribute the chlorine. Follow chemical
manufacturer's instructions for use of liquid chlorine.
WINTERIZING
(FREEZING CLIMATES)
With Doughboy Skimmer & Return Fitting
Your Sequel IITM Filter must be drained, cleaned and
stored indoors for the winter season. We strongly
recommend for the protection of your filter, liner and pool
wall, that you purchase and install the DOUGHBOY
Winterizing Kit (0-2099-001). The proper installation of
this kit will allow the removal and storage of your skim-
mer and filter, and should eliminate any possibility of
damage.
CAUTION
Removing the skimmer without installing a winterizing kit
is very dangerous to the pool wall, liner and pool
installation, and voids any warranty. Filter damage
caused by freezing temperatures is not covered by
product warranty.
To winterize Sequel IITM:Drain pool water to 6" below
return fitting. Rotate valve handle to PUMP TO WASTE
position (See Pump To Waste). Turn pump on and run
until water level is drawn down to skimmer level.
Turn pump OFF. Additional water removal can be
accomplished by syphoning with several garden hoses,
or vacuum hoses. Rotate valve handle to the
WINTERIZE position and remove drain plug (31).
Disconnect all hoses after water drains completely from
tank. Store your Sequel IITM and Pool Power Pak
indoors for the winter season. Filter or pump damage
caused by freezing temperatures is not covered by
product warranty.
LUBRICATION
Important: Regularly lubricate the O-Ring on the Power
Pak strainer assembly cover and Sequel IITM valve rotor
with a NON-PETROLEUM lubricant recommended for
A.B.S., Noryl and Acrylic plastics. Consult your pool
dealer for lubricant selections. To lubricate the O-Ring
on the valve rotor depress valve handle fully and apply
lubricant, then rotate handle to distribute lubricant. To
resume normal filtering operation, rotate valve handle to
FILTER position and start pump.
VACUUMING YOUR POOL
Prior to vaccuming, clean out strainer assembly basket
on your Power Pak and backwash your Sequel IlTM
Filter thoroughly. Follow skimmer manufacturer's
instructions for vacuuming pool. It may be necessary to
backwash your filter frequently during the vacuuming
operation. For excessive amounts of dirt on the pool
floor, we recommend that you vacuum directly to waste.
This is accomplished by installing your waste line (See
waste line hook-up) and placing the filter valve handle in
the PUMP TO WASTE position. Then proceed vacuum-
ing as usual. When you've completed vacuuming,
backwash your Sequel IITM thoroughly and clean the
strainer basket again. Resume normal filtering opera-
tion.
KEEP YOUR POOL SPARKLING
You can take steps to reduce the amount of
maintenance needed to keep your pool sparkling.
1. Provide a clean walkway leading to your pool
entrance.
2. Rinse off patio and area around pool regularly.
3. Swimmers should rinse off (especially their feet)
before entering pool.
4. Maintain the proper chemical balance in your pool.
Hot days will cause chemicals to dissipate rapidly.
5. Remove floating leaves and debris with a leaf
skimmer.
6. Empty skimmer basket and strainer basket
frequently.
7. Vacuum pool bottom to remove settled debris.
8. A pool cover will help keep your pool clean during
high winds or rainfall.
DOUGHBOY POOL CARE
Refer to Doughboy's "SAFETY FIRST Pool Use Hand-
book" for correct use, care, and chemical treatment of
Doughboy pools.
CHLORINE INSTRUCTIONS
ALWAYS READ AND FOLLOW CHEMICAL
MANUFACTURER'S
SAFETY PRECAUTIONS FOR HANDLING
CHLORINE
WARNING! DO NOT PLACE CHLORINE TABLETS IN
THE SKIMMER BASKET! Putting chlorine tablets
directly into the skimmer basket will destroy the pump
strainer basket and internal components. We recom-
mend against adding any kind of chemicals directly into
the skimmer!
Please read the following instructions carefully. Chlorine
is a strong chemical. Improper use could result in
serious, permanent damage to the pool liner. This
damage could include "white spots", wrinkles or break-

2. Calcium crustration in "V" grid cloth.
Disassemble filter and wash grids in 1 part
muriatic acid to 4 parts water.
E. Cloudy puff coming out of return fitting.
1. Place valve handle in FILTER TO WASTE
position when turning on pump and during
precoating of D.E..
2. Or, if vacuuming, place valve handle in
PUMP TO WASTE position.
F. Water is leaking to waste.
1. Inspect drain cap (19) and gasket (18) for
needed repair.
2. Actuate and rotate valve handle to clear
seating area of debris.
3. Or, replace valve gasket in tank cover.
G. Filter is backwashing when valve handle
is in FILTER position after servicing filter.
1. Valve cover is assembled backwards on tank
cover (180o from correct position).
SERVICE
During disassembly of the filter, mark each part's
assembled position as it relates to the mating part to
assure proper alignment when reassembled.
Malfunctioning of the filter will occur if not properly
reassembled. Use only original Doughboy replacement
parts. See your professional Doughboy pool dealer for
Original Equipment Manufactured (OEM) parts and
servicing.
TROUBLE SHOOTING
A. High gauge pressure, low return flow.
1. Filter requires backwashing.
2. Or, excessive contaminants or algae coated
on "V" grids inside filter. Backwash to
correct.
3. Calcium crustation in "V" grid cloth.
Disassemble filter and wash grids with 1 part
muriatic acid to 4 parts water.
B. Low gauge pressure, low flow. Pump
suction is drawing in air (noted by
bubbles returning to pool), or pump
sounds like marbles are rattling in it.
1. Pool water level is too low. SWITCH PUMP
"OFF" AT ONCE. Fill pool so water level is
between markers on skimmer faceplate.
2. Or, there is a restriction on the suction side
of the pump.
3. Or, pump strainer assembly is clogged with
debris. Clean strainer assembly.
4. Or, tighten pump strainer assembly lid.
C. High flow, low or normal gauge
pressure...but pool water won't clear up.
1. Pool water is chemically out of balance. Use
water test kit to check balance.
2. Or, opening in "V" grid cloth.
3. Or, "V" grid assembly inside filter is loose
and by-passing water.
D. Very short filtering cycles.
1. Excessive suspended contaminants or algae
in pool water. (Filter will require frequent
backwashing until pool clears up.)
6
PARTS LIST
SEQUEL IITM - MODEL 0-1651-000
ITEM P/N QTY DESCRIPTION
* NOTE: Item 21 includes items 15 and 35.
*21 1116-1172 1 Tank Cover Assembly
22 308-1114 1 O-Ring, Tank
23 308-1084 1 O-Ring
24 330-1024 4 #12 x 3/4" Phillips Screws
25 1107-1097 1 Grid Collector
26 1111-1012 8 "V" Grid Assembly
27 340-1199 1 "V" Grid Assembly Base
28 340-1200 1 Riser Nut
29 340-1180 1 16" Dia. Molded Tank
30 321-1021 18 1/4" - 20 Hex Nut
31 340-1183 1 Plug, Tank Drain
32 308-1043 1 O-Ring, Tank Drain
33 346-1013-1 1 Hose, 1 1/2" x 2 1/2' Lg.
34 387-1017 6 Wire Hose Clamp - 1 1/2"
35 343-1100 1 Air Relief
36 346-1035-1 2 Hose, 1 1/2" x 8' Lg.
37 326-1008 18 1/4" Washer
38 360-1397 1 Operating Instruct. Decal
ITEM P/N QTY DESCRIPTION
1
2
3 376-1050 1 Pin, Valve Handle
4 327-1007 2 Friction Washer - Delrin
5 330-1025 6 #12 x 1 1/8" Screw
6 1121-1521 1 Valve Cover Assembly
7 395-1014 1 Pressure Gauge
8 308-1039 3 O-Ring, Hose Adaptor
9 340-1224 1 Hose Adaptor - Light Oak
10 327-1006 2 Valve Bearing Washer - S.S.
11 396-1023 1 Spring, Valve Rotor
12 308-1044 1 O-Ring, Valve Rotor
13 340-2229 1 Valve Rotor
14 340-2228 1 Valve Handle
15 307-1022 1 Gasket, Rotor Valve
16 324-1020 18 1/4" Flange Bolt
17 340-1299 1 Waste Port Adaptor
18 307-1001 1 Gasket (Drain Cap)
19 340-1035 1 Drain Cap
20 340-1225 1 Hose Adaptor - Almond
365-1919 1 Owner's Guide
— 1 Warranty Card

7
TO POOL RETURN
SEQUEL II • MODEL 0-1651-000
EXPLODED PARTS
TO WASTE PORT
TO PUMP
1
2

Change of Design: Doughboy Recreational expressly reserves the right to change or modify the design and con-
struction of any product in due course of our manufacturing procedures, without incurring any obligation or liability to
furnish or install such changes or modifications on products previously or subsequently sold.
DOUGHBOY RECREATIONAL • 315 N. Sebastian St., West Helena, AR 72390
Visit our website at www.doughboy-pools.com
DB 0902-037 Made in the United States of America Copyright©2003